rs747171944
Positions:
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_000642.3(AGL):āc.4405A>Gā(p.Met1469Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,878 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā ).
Frequency
Genomes: not found (cov: 32)
Exomes š: 6.8e-7 ( 0 hom. )
Consequence
AGL
NM_000642.3 missense
NM_000642.3 missense
Scores
1
18
Clinical Significance
Conservation
PhyloP100: 5.65
Genes affected
AGL (HGNC:321): (amylo-alpha-1, 6-glucosidase, 4-alpha-glucanotransferase) This gene encodes the glycogen debrancher enzyme which is involved in glycogen degradation. This enzyme has two independent catalytic activities which occur at different sites on the protein: a 4-alpha-glucotransferase activity and a amylo-1,6-glucosidase activity. Mutations in this gene are associated with glycogen storage disease although a wide range of enzymatic and clinical variability occurs which may be due to tissue-specific alternative splicing. Alternatively spliced transcripts encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 0 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (MetaRNN=0.16284323).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
AGL | NM_000642.3 | c.4405A>G | p.Met1469Val | missense_variant | 33/34 | ENST00000361915.8 | |
LOC124904230 | XR_007066249.1 | n.1146-3438T>C | intron_variant, non_coding_transcript_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
AGL | ENST00000361915.8 | c.4405A>G | p.Met1469Val | missense_variant | 33/34 | 1 | NM_000642.3 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD3 exomes AF: 0.00000399 AC: 1AN: 250618Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135484
GnomAD3 exomes
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GnomAD4 exome AF: 6.85e-7 AC: 1AN: 1460878Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 726758
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GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ExAC
?
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1
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Glycogen storage disease type III Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | May 24, 2018 | In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with AGL-related disease. This variant is present in population databases (rs747171944, ExAC 0.002%). This sequence change replaces methionine with valine at codon 1469 of the AGL protein (p.Met1469Val). The methionine residue is moderately conserved and there is a small physicochemical difference between methionine and valine. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
DEOGEN2
Benign
T;T;T;T;.
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T;.;.;.;T
M_CAP
Benign
T
MetaRNN
Benign
T;T;T;T;T
MetaSVM
Benign
T
MutationAssessor
Benign
N;N;N;N;.
MutationTaster
Benign
D;D;D;D;D;D;D
PrimateAI
Benign
T
PROVEAN
Benign
N;N;N;N;N
REVEL
Benign
Sift
Benign
T;T;T;T;T
Sift4G
Benign
T;T;T;T;T
Polyphen
B;B;B;B;B
Vest4
MutPred
Loss of catalytic residue at M1469 (P = 0.011);Loss of catalytic residue at M1469 (P = 0.011);Loss of catalytic residue at M1469 (P = 0.011);Loss of catalytic residue at M1469 (P = 0.011);.;
MVP
MPC
0.043
ClinPred
T
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at